Heat transfer characteristic of thermal barrier coated piston crown for a compressed natural gas direct injection engine

Helmisyah Ahmad Jalaludin, Shahrir Abdullah, Mariyam Jameelah Ghazali

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Compressed natural gas with direct injection (CNGDI) engine produces high temperature and pressure ultimately leading to high thermal stress. The piston crown material fails to withstand high temperature and operate ineffectively due to improper heat transfer. By insulating the surface namely; thermal barrier coating (TBC) such as ceramic based yttria partially stabilised zirconia (YPSZ), heat transfer to the piston might be reduced and lead to improvement of piston durability. Hence, in this research, YPSZ/NiCrAl coating was utilised to differentiate with the uncoated piston crowns in terms of the ability to reduce thermal stresses to the piston using finite element method and burner rig test. Several samples of AC8A aluminium alloy piston crowns were coated with bonding element of NiCrAl and ZrO2-7.5Y2O3 namely the YPSZ as the top coat by using air-plasma spraying technique and were assessed by burner rig test. The results exhibited the durability of the YPSZ/NiCrAl coating could withstand the test and the heat flux for the YPSZ/NiCrAl-coated piston crown was about 98% reduction compared to the uncoated piston crown. Also, the lower the gradient value of the heat flux, the higher the heat resistance.

Original languageEnglish
Title of host publicationApplied Mechanics and Materials
PublisherTrans Tech Publications Ltd
Pages304-310
Number of pages7
Volume663
ISBN (Print)9783038352617
DOIs
Publication statusPublished - 2014
Event2nd International Conference on Recent Advances in Automotive Engineering and Mobility Research, ReCAR 2013 - Kuala Lumpur
Duration: 16 Dec 201318 Dec 2013

Publication series

NameApplied Mechanics and Materials
Volume663
ISSN (Print)16609336
ISSN (Electronic)16627482

Other

Other2nd International Conference on Recent Advances in Automotive Engineering and Mobility Research, ReCAR 2013
CityKuala Lumpur
Period16/12/1318/12/13

Fingerprint

Compressed natural gas
Direct injection
Pistons
Yttria stabilized zirconia
Heat transfer
Engines
Fuel burners
Thermal stress
Heat flux
Durability
Coatings
Thermal barrier coatings
Plasma spraying
Hot Temperature
Heat resistance
Aluminum alloys
Finite element method
Temperature

Keywords

  • Compressed natural gas direct injection
  • Finite element analysis
  • Heat flux
  • Piston crown
  • Plasma spraying
  • Thermal barrier coating

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Jalaludin, H. A., Abdullah, S., & Ghazali, M. J. (2014). Heat transfer characteristic of thermal barrier coated piston crown for a compressed natural gas direct injection engine. In Applied Mechanics and Materials (Vol. 663, pp. 304-310). (Applied Mechanics and Materials; Vol. 663). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/AMM.663.304

Heat transfer characteristic of thermal barrier coated piston crown for a compressed natural gas direct injection engine. / Jalaludin, Helmisyah Ahmad; Abdullah, Shahrir; Ghazali, Mariyam Jameelah.

Applied Mechanics and Materials. Vol. 663 Trans Tech Publications Ltd, 2014. p. 304-310 (Applied Mechanics and Materials; Vol. 663).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Jalaludin, HA, Abdullah, S & Ghazali, MJ 2014, Heat transfer characteristic of thermal barrier coated piston crown for a compressed natural gas direct injection engine. in Applied Mechanics and Materials. vol. 663, Applied Mechanics and Materials, vol. 663, Trans Tech Publications Ltd, pp. 304-310, 2nd International Conference on Recent Advances in Automotive Engineering and Mobility Research, ReCAR 2013, Kuala Lumpur, 16/12/13. https://doi.org/10.4028/www.scientific.net/AMM.663.304
Jalaludin HA, Abdullah S, Ghazali MJ. Heat transfer characteristic of thermal barrier coated piston crown for a compressed natural gas direct injection engine. In Applied Mechanics and Materials. Vol. 663. Trans Tech Publications Ltd. 2014. p. 304-310. (Applied Mechanics and Materials). https://doi.org/10.4028/www.scientific.net/AMM.663.304
Jalaludin, Helmisyah Ahmad ; Abdullah, Shahrir ; Ghazali, Mariyam Jameelah. / Heat transfer characteristic of thermal barrier coated piston crown for a compressed natural gas direct injection engine. Applied Mechanics and Materials. Vol. 663 Trans Tech Publications Ltd, 2014. pp. 304-310 (Applied Mechanics and Materials).
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